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Tytuł:
Wpływ pory roku na uszkodzenia drzewostanów olchowych podczas trzebieży wczesnej
Influence of the season on damage in black alder stands during early thinning
Autorzy:
Grzywiński, W.
Turowski, R.
Naskrent, B.
Powiązania:
https://bibliotekanauki.pl/articles/978921.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
logging
tree damage
stand damage rates
Alnus glutinosa
Opis:
The paper presents the comparison of the influence of the season (winter and summer) on the level of damage to trees remaining after the timber harvest during early thinning in young alder stands. The study was carried out in black alder stands aged 38 and 40 years located in north−eastern Poland (Płaska Forest District). Chainsaw logging was performed in the cut−to−length harvest system, while timber was extracted using an agricultural tractor with a trailer with manual timber loading and unloading. The number and share of damaged trees and stand damage rates were estimated in a particular season of the year. Logging resulted in the damage of 8.3% to residual trees. Almost twice as many trees were damaged in summer as in winter (p=0.001). Significantly higher share of trees in 3rd, 4th, and 5th damage classes was found. Only the damage of timber fibers (6th class) did not differ significantly between analyzed seasons. The stand weighted damage rate (W) ranged in winter from 0.12 to 0.38, and in summer between 0.12 and 0.80. In turn, the value of weighted coefficient of damaged trees in the remaining stand amounted to 10.24−60.15 in winter, and 19.07−119.64 in summer. Both W (p<0.01) and WDI (p<0.05) indices were twice higher in the summer than in the winter period.
Źródło:
Sylwan; 2020, 164, 05; 365-372
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Charakterystyka pędu głównego dojrzałej olszy czarnej (Alnus glutinosa (L.) Gaertn.)
Main shoot characteristics in the mature black alder (Alnus glutinosa (L.) Gaertn.)
Autorzy:
Dmyterko, E.
Powiązania:
https://bibliotekanauki.pl/articles/1026549.pdf
Data publikacji:
2003
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
przyrost wysokosci
lesnictwo
olsza czarna
pedy glowne
Alnus glutinosa
przyrosty roczne
drzewa lesne
main shoot
height increment
height growth rate
alnus glutinosa
Opis:
A comparative analysis was made for different measures of location and variation in height increment of the main stem of the mature black alder from the north−eastern region (N) and two southern regions (S1 and S2) of Poland. Correlation was found between annual height increment and tree age and height, as well as the number of the nodes along the shoot and the length of the internode. It was demonstrated that the trees producing long shoots in a given year would produce long shoots also in the successive years.
Źródło:
Sylwan; 2003, 147, 08; 11-18
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Structural diversity and production of alder stands on former agricultural land at high altitudes
Autorzy:
Vacek, Z.
Vacek, S.
Podrazsky, V.
Kral, J.
Bulusek, D.
Putalova, T.
Balas, M.
Kalouskova, I.
Schwarz, O.
Powiązania:
https://bibliotekanauki.pl/articles/41581.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
structural diversity
stand structure
alder stand
agricultural land
black alder
Alnus glutinosa
grey alder
Alnus incana
afforestation
succession
Sudetes Mountains
Opis:
The paper deals with the structural diversity and production of a less frequently studied type of alder stands originated on former agricultural lands in the 1950s, established partly by plantation and partly by natural succession in the area of the Krkonoše Mts. and the Orlické hory Mts. (Czech Republic). Four permanent research plots (PRP) were established at sites where Black alder (Alnus glutinosa L. Gaertn.) and Grey alder (Alnus incana L. Moench.) naturally occurs, each plot of 0.25 ha in size. The aim of the study was to evaluate the structure and development of the alder stands with respect to biodiversity, horizontal, vertical and species structure, diameter increment with emphasis on climate factors, and the quantity and quality of timber production. The results document low diversification of the studied stands in the PRPs. The horizontal structure is defined as random and clumped at sites at the highest altitude with high water table. The number of living trees with DBH ≥ 4 cm ranges between 556 to 828 trees ha-1 with the relative stand density index (SDI) 0.67–0.77. The stand volume ranges from 247 to 393 m3 ha–1, and decreases with higher altitudes. Low temperatures is limiting factor for radial growth in the high mountain areas, respectively low precipitation in the middle lands. Owing to a rather specific site character, as especially the spring area, the stands exhibit only average production, but the production quality is generally high. The quality timber is suitable for industrial use; the rot-affected trunk base parts usable for fuel represent only approximately 16%.
Źródło:
Dendrobiology; 2016, 75
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rozmiar uszkodzeń i strat olszowego drewna łuszczarskiego pozyskanego harwesterem Valmet 911.4 z głowicą 360.2
Wood damage and value loss of alder plywood harvested by Valmet 911.4 harvester with a 360.2 head
Autorzy:
Karaszewski, Z.
Łacka, A.
Bembenek, M.
Mederski, P.S.
Powiązania:
https://bibliotekanauki.pl/articles/989450.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
wood damage
harvesters
feed rollers
loss of wood
alnus glutinosa
wood quality
Opis:
The delimbing and bucking of timber using a harvester head is very productive in comparison with a chainsaw operations, however it can cause damage to the outer layer of round wood. This damage can originate from the delimbing knives or from the feed roller spikes. As a consequence, grey fungi can develop on coniferous species, and faster wood drying is also observed (with no regard to the species). Feed roller spikes create cuts and dents on the outer layers of the wood. When plywood is processed, the cuts and dents are recognised as damage as a consequence, they lower the wood quality and value. The objective of the presented research was to find out: 1) the depth of cuts, 2) the potential loss of volume, and 3) product value loss due to damage to plywood caused by feed roller spikes. The research was carried out on alder (Alnus glutinosa Geartn.) plywood logs harvested by a Valmet 911.4 with a 360.2 head. Measurements were taken using an electronic calliper with an accuracy of 0.01 mm. 16 plywood logs were considered, on which 384 measurement points (depth of spike cuts) were selected on different areas along the length of the log: 1, 2, 3 and 4 m from the butt end. The maximum depth of the spike cut was observed on the bottom part of the logs (1 m from the butt end) and amounted to 3.9 mm. This damage depth was statistically different to those at the 2nd, 3rd and 4th metre points, amounting to 1.9, 1.9 and 2.1 mm, respectively. The biggest volume losses were on the 1st metre of the plywood assortments: 0.004 m³ (4% of the volume), while on the further parts (2nd, 3rd and 4th metres) only 0.002 m³ of the plywood had damage (2% of the volume). In addition, the highest product value loss was on the butt end logs and amounted to 302 PLN/€72 per 100 m³. The following plywood assortments (2 nd , 3th and 4 th metres) had a loss of 76 PLN/€18 per 100 m³. Therefore, when plywood assortments are processed using a Valmet 911.4 harvester with a 360.2 head, it is recommended that after cutting and felling a tree, the plywood section of the alder tree trunk is cut off without feeding it through the harvester head.
Źródło:
Sylwan; 2016, 160, 12; 1002-1009
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
First record of alder Phytophthora in Poland
Autorzy:
Orlikowski, L.B.
Oszako, T.
Szkuta, G.
Powiązania:
https://bibliotekanauki.pl/articles/65129.pdf
Data publikacji:
2003
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
common alder
pathogenicity
Polska
isolation
Alnus glutinosa
fungi
Phytophthora
distribution
alder
Źródło:
Journal of Plant Protection Research; 2003, 43, 1
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Assessment of the Suitability of Lemon Balm and Alder Buckthorn Wastes for the Biogas Production
Autorzy:
Czubaszek, Robert
Powiązania:
https://bibliotekanauki.pl/articles/124081.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
biogas
lemon balm
Melissa officinalis L.
alder buckthorn
Frangula alnus Mill.
Opis:
The purpose of the study was to determine the suitability of wastes from herbal industry for the biogas production. The wastes of lemon balm (Melissa officinalis L.) and alder buckthorn (Frangula alnus Mill.) were used for the biomethane potential test (BMP). The following properties were determined in the tested material: total solids content (TS), volatile solids content (VS), total Kjeldahl nitrogen content (TKN), total organic carbon content (TOC), total phosphorus content (P) and total potassium content (K). The biogas yield was monitored on the basis of the liquid displacement method. The examined wastes differed in terms of the basic properties affecting the biogas production. Alder buckthorn contained more VS, TKN and TOC, while lemon balm had a narrower C/N ratio and higher P and K content. The tested wastes were also different in terms of the biogas production kinetics. In the case of lemon balm, the highest production was observed at the beginning of the experiment, while the anaerobic digestion of alder buckthorn waste was only noticeable in the third week of the experiment. This delay caused higher cumulative methane yield of lemon balm waste by about 60% than that of alder buckthorn. Despite those differences, the wastes from both plants were suitable for biogas production, mainly as co-substrates. Co-digestion resolves the problem of utilizing such wastes and decreases the demand for energy crops such as maize which should be used as fodder and food in the first place. In addition, clear differences in the kinetics of anaerobic digestion may cause that a simultaneous use of both tested wastes will ensure continuous biogas production at a relatively high level.
Źródło:
Journal of Ecological Engineering; 2019, 20, 11; 152-158
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Genetic variation within and among naturally regenerating populations of alder [Alnus glutinosa]
Autorzy:
Mejnartowicz, L
Powiązania:
https://bibliotekanauki.pl/articles/56806.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
rare allele
genetic distance
isoenzyme
Alnus incana
genetic diversity
European black alder
gene flow
beside grey alder
naturally regenerating population
heterozygosity
botany
alder
genetic variation
Alnus glutinosa
Opis:
To assess the inter- and intrapopulation genetic variation in the filial generation (F1) of alder (Alnus glutinosa (L.) Gaertn.), 11 naturally regenerated populations were analysed. Their parental populations (P), represent the whole Polish territory and belong to three phytosociological associations with alder: typical alder swamp forest Carici elongatae-Alnetum (Ce-A); alder riparian forest Circaeo-Alnetum (C-A); and ash-elm riparian forest Fraxino-Ulmetum (F-U). F1 populations are grown in a common-garden experiment (provenance trial). Genotyping of individual trees has been carried out by analysis in a bud tissue allele frequency in the 21 isozyme putative loci of 10 enzymes. Differences between populations in respect to the level of genetic diversity were not high. Genetic diversity measured as the number of effective alleles per locus was the highest (Ne = 1.65) in population Wińsko originating from F-U (where also the inbreeding coefficient was the highest, F = 0.429), and the lowest (Ne = 1.48) in population Sławki from Ce-A. In all investigated populations, observed heterozygosity (Ho = 20%) was lower than expected from H-W equilibrium (He = 29%). The highest genetic variation expressed as percentage of polymorphic loci (77.3%) was observed in the offspring populations from Ce-A, and the smallest (69.9%) in the populations originating from F-U. It seems that the low genetic differentiation between populations is probably connected with long-distance seed dispersal via river systems. Alder seed can be transported over long distances thanks to periodical flooding. There is some gene flow between alder populations, with about 2.5 immigrants successfully entering a population per generation (Nm = 2.55). The level of population subdivision within A. glutinosa was low (Fst = 0.089). There was no significant genetic differentiation between populations from different phytosociological associations. Mantel test exhibited no significant correlation (r = 0.077) between genetic and geographic distance. In the dendrogram constructed according to Nei (1972) on the basis of interpopulation genetic distances, many small groups can be observed.
Źródło:
Acta Societatis Botanicorum Poloniae; 2008, 77, 2
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Species composition of arthropods on six understory plant species growing in high and low light conditions
Autorzy:
Karolewski, P.
Lukowski, A.
Adamczyk, D.
Zmuda, M.
Giertych, M.J.
Maderek, E.
Powiązania:
https://bibliotekanauki.pl/articles/2078197.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
Cornus sanguinea
Corylus avellane
Frangula alnus
Prunus padus
Prunus serotine
Sambucus nigra
Opis:
The quality of leaves as food for insects is affected both by plant species and the light conditions present during growth. Little information exists concerning the impact of these factors on the diversity of insects that live in the forest understory. We studied arthropod fauna on six understory plant species commonly occurring in Europe. Different groups of herbivorous insects were identified, as well as predatory insects and arachnids. We analysed the influence of both plant species and light conditions during growth (low light; high light) on the species spectrum, and the number of insect specimens present. The resulting data were investigated in relation to the susceptibility of plant leaves to feeding by folivorous insects, as determined in earlier studies. We compared the similarity in species diversity, based on the Sørensen’s coefficient, and discussed the potential causes of observed differences in leaf damages. We found a total of 153 arthropod taxa on studied plants, under both light conditions. Corylus avellana and Prunus serotina, species characterized by greater leaf damage, have a wider diversity of arthropod species, and a greater number of herbivorous insects. Generally, light conditions had a greater effect on arthropod abundance than on species diversity. For two plant species, C. avellana and P. serotina, light conditions strongly, but reversely, influenced the total number of insects and, thus, the extent of leaf damage. The number and abundance of zoophagous species, and ratio to folivores (except C. avellana) are associated more with plant species than with light conditions
Źródło:
Dendrobiology; 2020, 84; 58-80
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wzrost sosny zwyczajnej i olszy szarej w mieszanej uprawie na pożarzysku w Nadleśnictwie Potrzebowice
The growth of Scots pine and grey alder in the mixed plantation on the fire−burnt area in the Potrzebowice Forest District
Autorzy:
Barzdajn, W.
Ceitel, J.
Zientarski, J.
Powiązania:
https://bibliotekanauki.pl/articles/1026424.pdf
Data publikacji:
2003
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
olsza szara
wzrost roslin
odnowienia lasu
hodowla lasu
tereny popozarowe
Alnus incana
sosna zwyczajna
lesnictwo
Nadlesnictwo Potrzebowice
Pinus sylvestris
drzewa lesne
uprawy lesne
alnus incana
pinus sylvestris
mixed plantation
Opis:
Grey alder (Alnus incana Moench.) in Poland is a recommended species for dry and oligotrophic habitat improvement and land reclamation. In Poland these issues have not been thoroughly investigated. The field experiment with Scots pine and grey alder in the mixed plantation was carried out on the fire−burnt area in the Potrzebowice Forest District. The proportion of grey alder in the species composition of plantations notably improved the growth of pine, but only with a 50−75% share of alder. This created some disturbances in the tending of plantations. The impact of pine on alder was negative.
Źródło:
Sylwan; 2003, 147, 06; 47-51
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zmienność proweniencyjna olszy czarnej w Polsce
Provenance variability of black alder in Poland
Autorzy:
Rożkowski, R.
Mejnartowicz, L.
Guzicka, M.
Dorobek, K.
Chmura, D.J.
Powiązania:
https://bibliotekanauki.pl/articles/979576.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
drzewa lesne
olsza czarna
Alnus glutinosa
proweniencje
wysokosc drzew
piersnice drzew
piersnicowe pole przekroju
miazszosc drzew
zmiennosc proweniencyjna
alnus glutinosa
diameter
diversity
height
population
productivity
stem straightness
Opis:
European black alder (Alnus glutinosa (L.) Gaertn.) is a widespread tree species associated with wetlands and riparian ecosystems, thus it plays an important ecological role. Due to its fast growth and favorable wood properties it also has a potential to satisfy a growing demand for wood and fiber. However, its growth potential is not fully realized in Poland. In this study we investigated variation in growth traits, productivity, and stem straightness among 11 populations of European black alder originating from the lowland distribution of the species in Poland. The common−garden experiment located in 1968 in Kórnik (mid−western Poland) has been so far the only provenance experiment with this species in our country. We measured height and diameter of all trees at the site, assessed stem straightness in a 5−step scale (1−crooked; 5−straight), and calculated productivity at age of 50 years, which should be considered close to the rotation age. We found significant variation among populations in all investigated traits. The difference in productivity between the best and the worst provenance reached 75%. Using published and unpublished data from previous measurements at this site we also analyzed a trend in provenance ranking through time. The best and worst provenance could be identified at age 16 years, but many ranking shifts took place afterwards at the intermediate rank positions. We conclude that growth, productivity and stem quality of black alder could be improved through selection of favorable provenances within the species. Selection decisions can be made at the age below the half the rotation age, although decisions at 3/4 of rotation age would be more precise.
Źródło:
Sylwan; 2019, 163, 10; 830-838
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Model wzrostu dla olszy czarnej (Alnus glutinosa (L.) Gaertn.)
A distance−independent tree growth model for black alder (Alnus glutinosa (L.) Gaertn.)
Autorzy:
Bruchwald, A.
Dudzińska, M.
Wirowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/1026558.pdf
Data publikacji:
2003
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
modele wzrostu
dendrometria
lesnictwo
olsza czarna
Alnus glutinosa
drzewa lesne
growth model
black alder
Opis:
The paper presents a stochastic growth model for black alder stands. The model was built on the rich empirical material collected in Poland, and some equations also considered data obtained from black alder stands in Germany. The model describes the concept of a model alder stand. The main characteristic of the model is stand density. This characteristic was used to draw up a thinning programme based on the principles of selective thinning.
Źródło:
Sylwan; 2003, 147, 08; 3-10
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Types of hazel (Corylus spp.) and alder (Alnus spp.) pollen seasons in Sosnowiec 1997 - 2007 (Poland)
Typy sezonów pyłkowych leszczyny (Corylus spp.) i olszy (Alnus spp.) w Sosnowcu 1997 - 2007 (Polska)
Autorzy:
Dabrowska-Zapart, K.
Powiązania:
https://bibliotekanauki.pl/articles/26797.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
season type
hazel
Corylus
alder
Alnus
pollen season
Sosnowiec town
1997-2007 period
Polska
Opis:
This paper investigates pollen seasons for Corylus spp. and Alnus spp. for the years 1997-2007 in Sosnowiec, southern Poland. The research was conducted by means of the volumetric method using a Burkard-type spore trap. The duration of pollen seasons was determined by means of the 98% method. The aim of this study was to distinguish the types of the course of hazel and alder pollen seasons using cluster analysis, including non-hierarchical clustering of multi-feature objects – k-means clustering. The pollen seasons were divided into five types because of considerable variations from one year to another. For both taxons one dominant type was found, which was characterized by a very long period of compact pollen release with low values of the pollen count and by the occurrence of several maximums divided by periods of a lower pollen count. This work contains only a preliminary analysis on the types of pollen seasons because of relatively short data set. Future research on a larger series of measurements should be proved.
Źródło:
Acta Agrobotanica; 2010, 63, 2
0065-0951
2300-357X
Pojawia się w:
Acta Agrobotanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The influence of weather conditions on the course of pollen seasons of alder [Alnus spp.], hazel [Corylus spp.] and birch [Betula spp.] in Lublin [2001-2006]
Wplyw warunkow pogodowych na przebieg sezonow pylkowych olszy [Alnus spp.], leszczyny [Corylus spp.] i brzozy [Betula spp.] w Lublinie w latach 2001-2006
Autorzy:
Dabrowska, A
Powiązania:
https://bibliotekanauki.pl/articles/28184.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
Alnus
alder
plant
Corylus
meteorological condition
aerobiology
weather condition
pollen season
Betula
birch
hazel
Opis:
The start and rate of fl orescence of Alnus, Corylus and Betula are dependent on meteorological conditions. In the present paper we have analysed the effect of mean, maximum and minimum temperature, relative air humidity and precipitation on the onset of the pollen season as well as on its length and annual count of pollen grains in alder, hazel and birch. The measurement of pollen fall was done by the gravimetric methods with the use of Durham sampler. Correlation coeffi cients were calculated between the determined characteristics of the pollen season and weather conditions. In the six-year research period 2001-2006 it was observed that low temperatures in January produced a delayed start of the pollen season in alder, hazel and birch. The beginning of fl owering in these taxa was also infl uenced by thermal conditions prevailing directly before the season (ca. 10 days). The pollen season of the trees in question tended to be prolonged alongside with the increase in relative air humidity, but it was shortened due to higher temperatures. The volume of alder and hazel pollen release increased together with the rise in relative air humidity and precipitation. The annual counts of birch pollen increased along with rising temperature and decreasing relative air humidity and precipitation in the season.
Początek i przebieg kwitnienia Alnus, Corylus, Betula, uzależniony jest od warunków meteorologicznych. W pracy analizowano wpływ temperatury średniej, maksymalnej i minimalnej, wilgotności względnej powietrza oraz opadów na datę początku sezonu pyłkowego, jego długość oraz sumę roczną ziaren pyłku olszy, leszczyny i brzozy. Pomiary opadu pyłku wykonano metodą grawimetryczną przy zastosowaniu aparatu Durhama. Pomiędzy wyznaczonymi cechami sezonu pyłkowego a warunkami pogodowymi wyliczono współczynniki korelacji. W sześcioletnim okresie badawczym 2001-2006 stwierdzono wpływ niskich temperatur stycznia na opóźnienie rozpoczęcia sezonu pyłkowego olszy, leszczyny i brzozy. Na rozpoczęcie kwitnienia tych taksonów miały również istotny wpływ warunki termiczne panujące bezpośrednio przed sezonem (około 10 dni). Sezon pyłkowy olszy, leszczyny i brzozy wydłużał się wraz ze wzrostem wilgotności względnej powietrza w sezonie, natomiast skracał pod wpływem wyższych temperatur. Wysokość produkcji ziaren pyłku olszy i leszczyny zwiększała się wraz ze wzrostem wilgotności względnej i opadów w sezonie pyłkowym. Roczne sumy ziaren pyłku brzozy zwiększały się wraz ze wzrostem temperatury, spadkiem wilgotności względnej powietrza i opadów w sezonie.
Źródło:
Acta Agrobotanica; 2008, 61, 1
0065-0951
2300-357X
Pojawia się w:
Acta Agrobotanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza porównawcza stopnia uszkodzenia jesionu wyniosłego (Fraxinus excelsior L.) i olszy czarnej (Alnus glutinosa (L.) Gaertn.), rosnących w zmieszaniu lub bliskim sąsiedztwie
Autorzy:
Dmyterko, E.
Tomusiak, R.
Wojtan, R.
Bruchwald, A.
Powiązania:
https://bibliotekanauki.pl/articles/1022270.pdf
Data publikacji:
2005
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
witalnosc
defoliacja
uszkodzenia drzew
sasiedztwo roslin
jesion wyniosly
Fraxinus excelsior
lesnictwo
olsza czarna
stopien zmieszania drzew
zamieranie drzew
Alnus glutinosa
drzewa lesne
tree dieback
defoliation
vitality
synthetic damage indicator
fraxinus excelsior
alnus glutinosa
Opis:
The paper presents a comparative analysis of the degree of damage to common ash and black alder trees growing in mixture or a close neighbourhood. Three variants of the damage assessment method were applied in the analysis: defoliation−based variant I, vitality variant II and synthetic damage indicator−based variant III. It was demonstrated that on average ash stands were more damaged than alder stands. This allowed to put forward a hypothesis that there is an alternative to replace ash with black alder on some, especially wet habitats where the dieback process is largely advanced.
Źródło:
Sylwan; 2005, 149, 02; 3-11
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Kierunki sukcesji zbiorowisk roslinnych z olsza szara Alnus incana [L.]Moench na gruntach porolnych w Bieszczadach Zachodnich
Autorzy:
Ambrozy, S
Wika, S.
Powiązania:
https://bibliotekanauki.pl/articles/53404.pdf
Data publikacji:
1998
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
sukcesja roslin
Bieszczady
olsza szara
zbiorowiska roslinne
grunty porolne
Alnus incana
lesnictwo
drzewa lesne
Źródło:
Prace Instytutu Badawczego Leśnictwa. Seria A; 1998, 852-855; 103-142
0369-9870
Pojawia się w:
Prace Instytutu Badawczego Leśnictwa. Seria A
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 78

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